Mine Index 0962 Old Ben Coal Corporation, Old Ben No. 25 Mine

Mine Index Number: 0962

Company Name:	Old Ben Coal Corporation
Mine Name:	Old Ben No. 25 Mine
Start Date:	1977	End Date:	August 1994
Type of Mine:	Underground
Total acres shown:	4,246
Acres after map date:		General Area of mining acres shown:

Shaft, Slope, Drift or Tipple Location(s)

Type	County	Township-Range	Section	Part Section

A shaft (hoist)

Franklin

7S 3E

26

NW NE NW

B shaft (man & material)

Franklin

7S 3E

26

NE NE NW

C shaft (hoist)

Franklin

7S 3E

22

SE NE NE

D shaft

Franklin

7S 3E

22

SW NE NE

Geology

		Thickness (ft)
Seam	Depth (ft)	Min	Max	Ave	Mining Method

Herrin

598

6.5-8.5

LW

Geological Problems Reported

A group of small faults was mapped along the 7th through 10th Main East entries. These were high angle, normal faults that strike NNW with displacements from a few inches to about 1 foot. These faults had the typical trend and style of subsidiary faults of the Cottage Grove Fault System, the major faults of which lie about 6 miles south of this mine. Although the faults were small, they weakened the roof. A large roof fall developed where such a fault ran the length of a crosscut between the 9th and 10th Main. Roof falls tended to be in north-south trending mains and rooms. Although top coal was left to protect the roof (composed primarily of gray shales), many falls of 10 feet or more occurred. The Energy Shale had a preferred fracture pattern trending northeast-southwest. Rolls were present, reducing the coal thickness to 2 feet. These rolls were up to 30 feet wide and 5 feet deep, and commonly occurred in parallel sets. Recently active faces bled gas. Concentrated masses of concretions were found.

Production

Company

Mine Name

Date

Production (tons)

Old Ben Coal Corporation (add)	Old Ben No. 25This mine became the National Coal Mine Museum in the 1990s. (add)	1977-1994	34,315,692

Total Production: 34,315,692

Production Notes

Coal Report production (if available)

Sources of Data

Source Map

Map Date

Original Scale

Digitized Scale

Map Type

State archive, MS_15

1-10-1995

1:4800

1:4800

Final

Annotated Bibliography (Data source - brief description of information)

Coal Reports - Production, ownership, years of operation, thickness.

Directory of Illinois Coal Mines (Franklin County) - Mine names, mine index, ownership, years of operation.

Mine notes (Franklin County) - Mine type, shaft location (A), seam, depth, geologic problems.

State archive, MS_15 - Shaft locations, mine outline, mining method.